Common Lisp Programming Exercises

Here are a few lisp exercises sources.

Lisp Koans
Common Lisp Koans is a language learning exercise in the same vein as
the ruby koans, python koans and others. It is a port of the prior
koans with some modifications to highlight lisp-specific features

Excercism.io offers a Common Lisp track with 29 exercises. Each exercise comes with a unit test script.

In general, you don't have to use a strict Common Lisp exercise
source: a problem statement or a specification can be implemented in
any programming language, including Common Lisp, even if the author of
the problem had another specific programming language in mind. Of
course, that means that some exercises become trivial, and other may
be more difficult, so some adaptation may be needed: just take it as
part of the exercise ;-)

The blog Programming Praxis
proposes regularly interesting exercises (the blog author proposes scheme
solutions but solutions in any language are accepted in the comments).

Lisp Books:

Sorry, I don't have any reference of CL books with exercises right now.
Please edit and add book or tutorial references!